Mourinho accused West Ham of "playing football from the 19th century" with their defensive approach at Stamford Bridge. And Everton's new loan signing has admitted the contrasting approaches of Martínez and Allardyce swayed him towards a six-month deal at Goodison Park.

Traoré, who is recovering from a hamstring injury, said: "I had a medical at Monaco where the manager [Allardyce] and one of the physios from West Ham came out to see me, and I think the results were sent to West Ham afterwards. There were other clubs interested but I looked at the style of the two teams, the football is different between Everton and West Ham, and I came to the conclusion that I would fit in better at Everton. From what I've seen, Everton keep the ball on the ground a bit more, pass the ball around more, and I like that. I like to see a lot of the ball and I think Everton's way is better suited to my technical ability."

At 6ft 8in, Traoré's height advantage is glaringly obvious but he – and Martínez – insisted his strengths are not necessarily in the air. "I am tall so if there are corners, free-kicks and high balls I'm not going to shy away from them and will use my presence there," he said. "But I think the strength of my game is the technical, skilful side and I like the ball on the ground. Everton like to pass the ball on the floor and play football. Coming back to West Ham, it is also a squad full of strikers so I think the competition there would have made it difficult to get a starting place."

The striker's move to Everton appeared in doubt when Monaco lost Radamel Falcao to a cruciate ligament injury. "Right up until this moment in time I don't really know why Monaco didn't want me to stay. I couldn't tell you," he said. "The way I see it, the deal was pretty much done at around the time that Falcao got injured."

Everton, meanwhile, have announced that their turnover rose by almost £6m to £86m and an operating profit of £700,000 before player trading for the financial year ending 31 May 2013. The club made an operating loss of £6.4m the previous year.

The figures, which do not include the new record broadcasting deal or the sales of Marouane Fellaini, Victor Anichebe and Jelavic for a combined total of almost £40m, show the club's overall debt fell marginally to £42.6m.